package net.minecraft.world.gen.feature;

import java.util.Random;
import net.minecraft.block.Block;
import net.minecraft.block.BlockCocoa;
import net.minecraft.block.BlockLeaves;
import net.minecraft.block.BlockOldLeaf;
import net.minecraft.block.BlockOldLog;
import net.minecraft.block.BlockPlanks;
import net.minecraft.block.BlockVine;
import net.minecraft.block.material.Material;
import net.minecraft.block.properties.PropertyBool;
import net.minecraft.block.state.IBlockState;
import net.minecraft.init.Blocks;
import net.minecraft.util.BlockPos;
import net.minecraft.util.EnumFacing;
import net.minecraft.world.World;

public class WorldGenTrees extends WorldGenAbstractTree {
	private static final IBlockState field_181653_a = Blocks.log.getDefaultState().withProperty(BlockOldLog.VARIANT,
			BlockPlanks.EnumType.OAK);
	private static final IBlockState field_181654_b = Blocks.leaves.getDefaultState()
			.withProperty(BlockOldLeaf.VARIANT, BlockPlanks.EnumType.OAK)
			.withProperty(BlockLeaves.CHECK_DECAY, Boolean.valueOf(false));

	/** The minimum height of a generated tree. */
	private final int minTreeHeight;

	/** True if this tree should grow Vines. */
	private final boolean vinesGrow;

	/** The metadata value of the wood to use in tree generation. */
	private final IBlockState metaWood;

	/** The metadata value of the leaves to use in tree generation. */
	private final IBlockState metaLeaves;

	public WorldGenTrees(boolean p_i2027_1_) {
		this(p_i2027_1_, 4, field_181653_a, field_181654_b, false);
	}

	public WorldGenTrees(boolean p_i46446_1_, int p_i46446_2_, IBlockState p_i46446_3_, IBlockState p_i46446_4_,
			boolean p_i46446_5_) {
		super(p_i46446_1_);
		this.minTreeHeight = p_i46446_2_;
		this.metaWood = p_i46446_3_;
		this.metaLeaves = p_i46446_4_;
		this.vinesGrow = p_i46446_5_;
	}

	public boolean generate(World worldIn, Random rand, BlockPos position) {
		int i = rand.nextInt(3) + this.minTreeHeight;
		boolean flag = true;

		if (position.getY() >= 1 && position.getY() + i + 1 <= 256) {
			for (int j = position.getY(); j <= position.getY() + 1 + i; ++j) {
				int k = 1;

				if (j == position.getY()) {
					k = 0;
				}

				if (j >= position.getY() + 1 + i - 2) {
					k = 2;
				}

				BlockPos.MutableBlockPos blockpos$mutableblockpos = new BlockPos.MutableBlockPos();

				for (int l = position.getX() - k; l <= position.getX() + k && flag; ++l) {
					for (int i1 = position.getZ() - k; i1 <= position.getZ() + k && flag; ++i1) {
						if (j >= 0 && j < 256) {
							if (!this.func_150523_a(worldIn
									.getBlockState(blockpos$mutableblockpos.func_181079_c(l, j, i1)).getBlock())) {
								flag = false;
							}
						} else {
							flag = false;
						}
					}
				}
			}

			if (!flag) {
				return false;
			} else {
				Block block1 = worldIn.getBlockState(position.down()).getBlock();

				if ((block1 == Blocks.grass || block1 == Blocks.dirt || block1 == Blocks.farmland)
						&& position.getY() < 256 - i - 1) {
					this.func_175921_a(worldIn, position.down());
					int k2 = 3;
					int l2 = 0;

					for (int i3 = position.getY() - k2 + i; i3 <= position.getY() + i; ++i3) {
						int i4 = i3 - (position.getY() + i);
						int j1 = l2 + 1 - i4 / 2;

						for (int k1 = position.getX() - j1; k1 <= position.getX() + j1; ++k1) {
							int l1 = k1 - position.getX();

							for (int i2 = position.getZ() - j1; i2 <= position.getZ() + j1; ++i2) {
								int j2 = i2 - position.getZ();

								if (Math.abs(l1) != j1 || Math.abs(j2) != j1 || rand.nextInt(2) != 0 && i4 != 0) {
									BlockPos blockpos = new BlockPos(k1, i3, i2);
									Block block = worldIn.getBlockState(blockpos).getBlock();

									if (block.getMaterial() == Material.air || block.getMaterial() == Material.leaves
											|| block.getMaterial() == Material.vine) {
										this.setBlockAndNotifyAdequately(worldIn, blockpos, this.metaLeaves);
									}
								}
							}
						}
					}

					for (int j3 = 0; j3 < i; ++j3) {
						Block block2 = worldIn.getBlockState(position.up(j3)).getBlock();

						if (block2.getMaterial() == Material.air || block2.getMaterial() == Material.leaves
								|| block2.getMaterial() == Material.vine) {
							this.setBlockAndNotifyAdequately(worldIn, position.up(j3), this.metaWood);

							if (this.vinesGrow && j3 > 0) {
								if (rand.nextInt(3) > 0 && worldIn.isAirBlock(position.add(-1, j3, 0))) {
									this.func_181651_a(worldIn, position.add(-1, j3, 0), BlockVine.EAST);
								}

								if (rand.nextInt(3) > 0 && worldIn.isAirBlock(position.add(1, j3, 0))) {
									this.func_181651_a(worldIn, position.add(1, j3, 0), BlockVine.WEST);
								}

								if (rand.nextInt(3) > 0 && worldIn.isAirBlock(position.add(0, j3, -1))) {
									this.func_181651_a(worldIn, position.add(0, j3, -1), BlockVine.SOUTH);
								}

								if (rand.nextInt(3) > 0 && worldIn.isAirBlock(position.add(0, j3, 1))) {
									this.func_181651_a(worldIn, position.add(0, j3, 1), BlockVine.NORTH);
								}
							}
						}
					}

					if (this.vinesGrow) {
						for (int k3 = position.getY() - 3 + i; k3 <= position.getY() + i; ++k3) {
							int j4 = k3 - (position.getY() + i);
							int k4 = 2 - j4 / 2;
							BlockPos.MutableBlockPos blockpos$mutableblockpos1 = new BlockPos.MutableBlockPos();

							for (int l4 = position.getX() - k4; l4 <= position.getX() + k4; ++l4) {
								for (int i5 = position.getZ() - k4; i5 <= position.getZ() + k4; ++i5) {
									blockpos$mutableblockpos1.func_181079_c(l4, k3, i5);

									if (worldIn.getBlockState(blockpos$mutableblockpos1).getBlock()
											.getMaterial() == Material.leaves) {
										BlockPos blockpos2 = blockpos$mutableblockpos1.west();
										BlockPos blockpos3 = blockpos$mutableblockpos1.east();
										BlockPos blockpos4 = blockpos$mutableblockpos1.north();
										BlockPos blockpos1 = blockpos$mutableblockpos1.south();

										if (rand.nextInt(4) == 0 && worldIn.getBlockState(blockpos2).getBlock()
												.getMaterial() == Material.air) {
											this.func_181650_b(worldIn, blockpos2, BlockVine.EAST);
										}

										if (rand.nextInt(4) == 0 && worldIn.getBlockState(blockpos3).getBlock()
												.getMaterial() == Material.air) {
											this.func_181650_b(worldIn, blockpos3, BlockVine.WEST);
										}

										if (rand.nextInt(4) == 0 && worldIn.getBlockState(blockpos4).getBlock()
												.getMaterial() == Material.air) {
											this.func_181650_b(worldIn, blockpos4, BlockVine.SOUTH);
										}

										if (rand.nextInt(4) == 0 && worldIn.getBlockState(blockpos1).getBlock()
												.getMaterial() == Material.air) {
											this.func_181650_b(worldIn, blockpos1, BlockVine.NORTH);
										}
									}
								}
							}
						}

						if (rand.nextInt(5) == 0 && i > 5) {
							for (int l3 = 0; l3 < 2; ++l3) {
								for (Object enumfacing : EnumFacing.Plane.HORIZONTAL) {
									if (rand.nextInt(4 - l3) == 0) {
										EnumFacing enumfacing1 = ((EnumFacing) enumfacing).getOpposite();
										this.func_181652_a(
												worldIn, rand.nextInt(3), position.add(enumfacing1.getFrontOffsetX(),
														i - 5 + l3, enumfacing1.getFrontOffsetZ()),
												(EnumFacing) enumfacing);
									}
								}
							}
						}
					}

					return true;
				} else {
					return false;
				}
			}
		} else {
			return false;
		}
	}

	private void func_181652_a(World p_181652_1_, int p_181652_2_, BlockPos p_181652_3_, EnumFacing p_181652_4_) {
		this.setBlockAndNotifyAdequately(p_181652_1_, p_181652_3_,
				Blocks.cocoa.getDefaultState().withProperty(BlockCocoa.AGE, Integer.valueOf(p_181652_2_))
						.withProperty(BlockCocoa.FACING, p_181652_4_));
	}

	private void func_181651_a(World p_181651_1_, BlockPos p_181651_2_, PropertyBool p_181651_3_) {
		this.setBlockAndNotifyAdequately(p_181651_1_, p_181651_2_,
				Blocks.vine.getDefaultState().withProperty(p_181651_3_, Boolean.valueOf(true)));
	}

	private void func_181650_b(World p_181650_1_, BlockPos p_181650_2_, PropertyBool p_181650_3_) {
		this.func_181651_a(p_181650_1_, p_181650_2_, p_181650_3_);
		int i = 4;

		for (p_181650_2_ = p_181650_2_
				.down(); p_181650_1_.getBlockState(p_181650_2_).getBlock().getMaterial() == Material.air
						&& i > 0; --i) {
			this.func_181651_a(p_181650_1_, p_181650_2_, p_181650_3_);
			p_181650_2_ = p_181650_2_.down();
		}
	}
}
